baber/WOPTO huggingface dataset:
Patent GB-940236-A (GB)
Title: Improvements in or relating to layers of semiconductor material
IPC: H01L21/00
Filed: 1961-11-28
Abstract: <FORM:0940236/C3/1> In a process of forming a monocrystalline layer of a semi-conductor on a carrier body of a different material by the thermal decomposition of a gaseous compound of the semi-conductor, a source of heat is moved relative to the carrier so that successive portions of the surface of the carrier are heated to above the decomposition temperature of the gaseous compound and above the melting point of the semi-conductor, the semi-conductor being deposited in the molten state in these successive portions. The carrier may be a ceramic, quartz or a metal such as tantalum which may also contain boron and the semi-conductor may be silicon, germanium or a compound of an element from Group III and an element from Group V of the Periodic Table.  In the case of silicon the gaseous compound is silicon chloroform and as shown in Fig. 1 a quartz carrier 1 is heated to below the decomposition temperature of silicon chloroform by means of a direct current from a source 16.  A movable source of heat consisting of hot body 12 and reflector 11 heats a narrow portion of carrier 1 to above the decomposition temperature of silicon chloroform and above the melting point of silicon while the silicon chloroform is directed on to this heated portion from a nozzle 6 and molten silicon is deposited in a narrow strip on the carrier.  The heat source is moved along in direction 10 and the nozzle 6 is moved in direction 4 and silicon is then deposited in successive narrow strips. An inert gas forms a protective sheath around the silicon chloroform issuing from the nozzle 6.  In a further embodiment the nozzle 6 is replaced by a reaction chamber in which the silicon chloroform is decomposed.  The heating may alternatively be effected by a gas discharge and furthermore an electrically active impurity material may be deposited on the carrier together with the semi-conductor.
Patent GB-1314667-A (GB)
Title: Valve control device
IPC: F16K31/143
Filed: 1971-09-13
Abstract: 1314667 Valves C O HANSEN MASKIN-FABRIK AF 1970 AS 13 Sept 1971 [14 Sept 1970] 42522/71 Heading F2V [Also in Division F1] The valve actuating stem 1 has a threaded connection 8 with the rod 6 of spring-loaded piston 5 so that the valve may be opened by fluid-pressure admitted to cylinder 4 or manually by turning hand wheel 10. Prior to manual operation the piston is locked in position by moving nut 11, which is screwed on the end of rod 6, to abut the end 7 of the cylinder. This allows initial movement of the stem to open the valve and allows the spring to bias the valve closed when the valve has been reclosed manually. Pin 12 locks nut 11 to wheel 10 during fluid pressure actuation. In another embodiment the spring and piston act in the opposite direction.
Patent GB-1203470-A (GB)
Title: Remanent relays
Inventor: GRAU THOMAS GEORGE
IPC: H01H51/01
Filed: 1967-09-19
Abstract: 1,203,470. Elactromagnetic relays. WESTERN ELECTRIC CO. Inc. 19 Sept., 1967 [19 Sept., 1966], No. 42570/67. Heading H1N. A remanent relay has means in its magnetic circuit to limit the magnitude of the remanent flux to a level lower than the saturation value of the region of engagement between the movable end of the armature 22 and core 20. This provision gives the relay a lower remanent flux value and shorter release time than a conventional remanent relay wherein the limiting remanent flux level is determined by saturation of the region of engagement between the armature and core. The level of remanent flux is limited by a reduced cross-section saturating portion of the armature 22. As described a hole is provided in the armature to reduce its cross-section. The pressed-out dome 26 of the armature is of larger radius e.g. 2 to 5 inches, than prior art relays to ensure adequate flux conduction and holding. The contact arrangement is as described in Specification 731,486.
Patent GB-1283392-A (GB)
Title: Improvements in or relating to the selective metallising of bodies of insulating material
IPC: C04B41/81
Filed: 1969-08-29
Abstract: 1283392 Coating insulating substrates with metal SIEMENS AG 29 Aug 1969 [30 Aug 1968] 43036/69 Heading C7F An insulating, e.g. ceramic, substrate is selectively coated with metal by first coating it with a separating layer of e.g. silicone oil which is applied in the desired pattern by means of a photo-varnish, then dipping it in a solution of e. g. lithium polymolybdate, drying, and then heating at e. g. 1350 to 1600 C., whilst flushing with dry hydrogen. The lithium polymolybdate may be saturated with lithium fluoride.
Patent GB-997724-A (GB)
Title: Water filtering apparatus
Inventor: IONIDES MICHAEL GEORGE
IPC: B01D25/00
Filed: 1962-11-15
Abstract: 997,724. Filter beds. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 14, 1964 [Nov. 15, 1962], No. 43314/62. Heading B1D. A bed of filtering material (e.g. sand) 8 is supported by a perforated membrane 7, at least two layers of rigid bars 3, 4 and 5, 6, comprising grout-filled flexible tubes and extending transversely to each other, and a lower layer 2 of impervious sheet material. The arrangement is incorporated at the bottom of a water reservoir, the channels 4a between bars 3, 4 providing conduits along which filtered water may run, or alternatively a multi-layer stack of bars forming a filtered water reservoir below bed 8. The layer 2 and tubes 3, 5 may be polythene ; the grout 4, 6 may be concrete. Tubes 3 and layer 2, and similarly tubes 5 and membrane 7 may be formed separately as shown or may be integral structures. Fig. 2 (not shown) illustrates a lower layer 2 formed of lengths of membrane each having a tube integral along each edge, the tubes on adjacent strips overlapping. Alternatively, each length itself could be of flat tubular form. In assembly the tubes may be inflated with air or water to facilitate positioning, and subsequently re-inflated with grout. Specification 935,349 is referred to.
Patent GB-1480122-A (GB)
Title: Clip for securing folded garments
IPC: B65D85/18
Filed: 1974-10-02
Abstract: 1480122 Garment clip M KANNEGIESSEB 2 Oct 1974 [10 Nov 1973] 43437/75 Divided out of 1480121 Heading B8C [Also in Division E2] A U-shaped clip 101 for-securing folded garments against unfolding comprises two resilient arms 104 of equal length, the ends 105 of the arms being bent away from each, the planes 120, 121 in which the outermost edge 106 of the end and the outermost surface 108 of the remaining part of each arm lie being parallel, the facing surfaces 109 of the arms having offset teeth 110, and the clip being of uniform width in a direction parallel to the planes 120, 121. The clip may be of plastics and be impermeable to light.
Patent GB-1242853-A (GB)
Title: Improvements in or relating to mosaics
Inventor: SWINNEY JOHN BARRY COTTER
IPC: B44C3/12
Filed: 1967-09-26
Abstract: 1,242,853. Mosaic. J. B. C. SWINNEY and D. C. SWINNEY. 6 Sept., 1968 [26 Sept., 1967], No. 43704/67. Heading B6G. A mosaic includes a base provided with a plurality of raised portions constituting the main lines of a design and a plurality of tesserae of varying colours secured by an adhesive applied by means of a brush to the base within the areas outlined by the raised portions. The tesserae may be tiles, beads, flakes, cylindrical pieces made of synthetic resin, natural organic material or metal e.g. extruded polystyrene, oyster shell, aluminium, natural and synthetic ceramics, glass, natural or synthetic stones. The base may be of synthetic resin, e.g. polystyrene and may be vacuum formed in a mould. Alternatively the raised portions may be provided by strips of flexible material secured by an adhesive to the base. The adhesive may be polystyrene. Preferably the brush has a handle the end of which is shaped to facilitate the placing of individual tesserae in position by dipping the end into the adhesive and picking up each individual tessera on said end. The mosaic may be constructed from a kit of parts which may include a sheet containing a pictorial representation of the areas outlined by the raised portions and instructions to construct the mosaic.
Patent GB-1158596-A (GB)
Title: An improved Golf Practice Net
Inventor: GOLDTHORPE SAMUEL LESLIE
IPC: A63B63/00
Filed: 1965-10-15
Abstract: 1,158,596. Collapsible golf practise net. CARR GYMNASIUM EQUIPMENT Ltd. 3 Nov., 1966 [15 Oct., 1965], No. 43724/65. Heading A6D. A collapsible golf practise net construction comprises a frame supporting netting substantially in the form of a hollow tetrahedron having one inclined face open. In an embodiment the practice net comprises a frame 1 in the form of a tripod, the forward legs 2 and 3 engage with the ground, the third leg 4 being raised and supported by a ground-engaging member 5, bracing bars 6 and 6a being secured to legs 2 and 4 and 3 and 4 respectively; and netting in the form of three equi-angular panels being secured to the frame at the corners 10, 11 and 12, to the cross-bar 13 of the ground-engaging member 5, and to the ends of a strut 14 which extends parallel to the line between the corners 11 and 12.
Patent GB-1277918-A (GB)
Title: Improvements in the manufacture of super-white cements
Inventor: RIVOIRE CLAUDE LUCIEN
IPC: C04B7/00
Filed: 1969-09-05
Abstract: 1277918 White cement CIMENTS LAFARGE 5 Sept 1969 [28 Oct 1968] 44014/69 Heading C1H Superwhite cement is obtained by firing suitable raw material in a reducing atmosphere to produce a porous clinker which is crushed at 1000-1450‹ C., cooled to 700-1100‹ C. in 1À5 to 6 mins. whilst passing through a reducing atmosphere, rapidly cooled to 300‹ C. by atomized water whilst excluding air, and col-  lected without excluding air, the crushed clinker being vibrationally transported through the reducing and cooling stages.
Patent GB-1119765-A (GB)
Title: Improvements in or relating to a wire braking and driving mechanism and a machine for straightening and twisting wires including said mechanism
IPC: B21C47/34
Filed: 1965-10-18
Abstract: 1,119,765. Twisting; straightening; metal strip feeds. UNION SIDERURGIQUE DU NORD DE LA FRANCE. 18 Oct., 1965 [2 Nov., 1964], No. 44022/65. Headings B3E and B3W. A wire braking and driving mechanism comprises a number of freely rotatable pulleys disposed so as to cause the wire to travel therethrough in a sinuous path and act as a braking device thereon and, downstream of the pulleys, drive means for exerting a pull on the wire. The mechanism is incorporated in a machine for straightening and twisting wires X as described in Specification 802,791, to which reference is made, between the supply reel D for the wire and cutting means F, one such mechanism being provided for each of a plurality of parallel wires. The wire W is braked and straightened by passage between freely rotatable pulleys 202, 203, 204, the pulley 203 being displaceable by a jack 206 to facilitate initial positioning of the wire. The wire then passes between a pulley 208, driven by an electric motor, and a freely rotating pulley 214 movable towards the pulley 208 by a jack 226, and away from the pulley 208 by gravity. When wire has been fed by the pulleys 214, 208 to twisting and pulling chucks, the pulley 208 is lowered so that the wire is no longer driven by the pulleys 214, 208.
Patent GB-1488023-A (GB)
Title: Rotary-anode x-ray tube
IPC: H01J35/10
Filed: 1974-10-11
Abstract: 1488023 X-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Oct 1974 [15 Oct 1973] 44131/74 Heading H1D In a rotary anode X-ray tube, the electron current density in the focal spot at the anode decreases with distance x from one edge of the spot in the direction of rotation of the anode substantially as <SP>1</SP>/#x. An approximately isothermal region is produced at the anode surface, minimum focal spot widths may be attained and higher definition radiographs may be produced due to improved modulation transfer functions as discussed w.r.t., Fig. 4 (not shown), comparative curves (41), (42), corresponding to Gaussian and uniform focal spot current distributions. Directly heated cathode emissive strip 8 is tapered in the width direction, the current density across sectional area 20 is constant, and the temperature gradient ensures higher emission towards side 21. Strip 8 is longer than slit 9 enabling disposition of leads 7 behind sleeve 10 to reduce edge effects. Strip dimensions are specified. The temperature gradient may be produced in an indirectly heated strip of uniform thickness by the angular disposition of the heater element or by provision of good thermal contact along one longitudinal side only, or alternatively the emissive material work function may vary across the strip. The current distribution may be obtained by electron optical means producing a field gradient at the emissive surface. I max /I min  may be 10, and the focal spot may be circular, although edge effects will be increased. A circular emitting disc may be angularly positioned beneath the cathode sleeve. In Fig. 1, there may be two adjacent strips 8 and slits 9 producing concentric focal paths on the anode and different X-ray beam object points, or different wavelength X-rays if the anode comprises different material portions. Anode rotation may be 9000 revolutions/minute.
Patent GB-938226-A (GB)
Title: Method and apparatus for the analysis of a fluid
IPC: G01N27/06
Filed: 1959-12-29
Abstract: <PICT:0938226/III/1> <PICT:0938226/III/2> Liquids and gases are analysed by alternately passing streams of reference and sample fluid through identical chambers of a test cell connected in series by a delay volume greater than that of a chamber, said chambers comprising means for registering a physical property, the parts of the apparatus traversed by both fluids being so dimensioned that no diffusion between the reference and sample fluids occurs and registration of the physical property taking place when one of the fluids exactly fills one chamber and the delay volume.  The property measured may be (for gases) thermal conductivity or heat of combustion, or (for liquids) electrical conductivity.  Reference is made to Specification 878,043, in which thermistors are employed to detect thermal conductivity in gases.  In the preferred apparatus (see Fig. 2) which is used for analysis of air containing acetone, two cells in a block 21 are employed, and each contains a resistance element connected conventionally into a Wheatstone bridge circuit.  A three-way valve 23 is provided whereby the cell is connected alternatively to a reference sample of air in a bottle 26, through a line having an expansion device 27 or to a source of the air to be tested, through a line having a filter 28 and drier 29.  A heat insulated thermostatically controlled enclosure 24 is provided. The gases are drawn through the cells by means of a pump 25.  The cells are connected by delay volume 22 and the time during which the valve is successively in each of its two positions is correlated with the delay volume and the cell volume so that during the passage of either gas through one of the cells, the signal reaches its asymptotic value.  The valve is operated by a cam system 30: a suitable system is shown in Fig. 3, in which synchronized cams 45, 451 actuate contacts 51, 47, which respectively connect into circuit a selected electromagnet for the withdrawal or insertion of the valve member and serve to rectify the signal according to which fluid is in the test cell: a signal from the Wheatstone bridge 41 comprising the thermosensitive elements is passed to a high pass filter 46 comprising a condenser and thence to an amplifier 48 and recorder 49.
Patent GB-1128293-A (GB)
Title: Improvements relating to pile products
IPC: D04G3/02
Filed: 1965-10-22
Abstract: 1,128,293. Tufted fabrics, embroidery. H. KLEINERMANNS. 22 Oct., 1965 [24 Oct., 1964; 23 April, 1965], No. 44721/65. Headings DIG and D1K. A pile fabric is made by inserting threads through at least one distance plate successively from one side to the other and back by means of a needle or the like, connecting together the loop of pile thread lying on one side of the distance plate, severing the pile threads at the other side of the distance plate, and removing the distance plate by withdrawing the severed pile threads therethrough. As shown, a backing fabric 1 is detachably secured to a plate 2 formed with perforations 3 arranged according to the desired design of tufting. A needle carrying yarn 4 is is passed through the perforations successively from one side to the other, the lower loops 6 are secured to the fabric 1 by adhesive 7, the upper loops 5 are severed as at 8a or are removed by shearing as at 8b, and plate 2 is removed to expose the tufted fabric. Plate 2 may be unperforated, and fabric 1 may be omitted, the loops 6 then being connected together by adhesive material. In a modification, two plates 2 are placed face to face, yarn is passed therethrough and is severed between the plates to separate the latter. The fabric sheets may be interconnected, hinge fashion, and after the sheets have been opened out the interconnect - ing fabric is tufted by the use of an auxiliary plate of strip form.
Patent GB-1400864-A (GB)
Title: Binding anchors in multi layered concrete slbas
IPC: E04C2/04
Filed: 1972-09-29
Abstract: 1400864 Multi layer slab with spacer and tie THOR WAERNER & CO GmbH 29 Sept 1972 [7 Oot 1971] 44977/72 Headings E1B and E1W Two reinforced concrete slabs 6, 8 are cast with an intermediate layer of preformed foamed plastics by using spacers 1 formed of sheet metal of curved or angularly bent form. The spacer 1 is placed with cut out recesses 4 over the bars of a lower reinforcing grid 2 and short rods 11 pushed through holes in the spacer to fix the bars in the recesses 4. The concrete 6 is then cast, the preformed plastics sheets pressed over the projecting spacers, the upper grid fixed in position on the spacers and the upper concrete 8 cast. The spacers may be cast or stamped and may have projecting surface irregularities to facilitate bonding to the concrete.
Patent GB-1030949-A (GB)
Title: Diversion section for motor roads
IPC: E01C9/08
Filed: 1964-11-04
Abstract: 1,030,949. Temporary roadways. BETEILIGUNGS-UND PATENTVERWALTUNGSGESELLSCHAFT. Nov. 4, 1964 [Nov. 5, 1963; Nov. 13, 1963], No. 44978/64. Heading E1G. A temporary roadway to double the traffic capacity of one track of a dual carriageway comprises portable carriageway plates laid continuously above the two edges of the single carriageway. Lattice girder supported plates for four lanes of traffic may be supported on sleepers from the edges of a two lane carriageway, the outer lanes being hinged on longitudinal axes for transport. The plates may be joined by dumbell-shaped keys engaging sloping open-ended keyhole slots. Trapezoidal sheet metal curbs may be bolted to the plate edges to increase rigidity of the structure. In one embodiment, Fig. 30, vertical supports 51, 52 carry an overhead carriageway 53, which may be adjustable for height, over a second carriageway using the surface 57 of the existing double track road. Additional carriageways 54, 55 are hinged to the supports 51, 52 and levelled by jacks 69.
Patent GB-1478986-A (GB)
Title: Camshaft lubrication arrangement
IPC: F01M9/10
Filed: 1974-10-18
Abstract: 1478986 Lubrication of IC engine cam-shafts MASCHINENFABRIK AUGSBURG-NURNBERG AG 18 Oct 1974 [26 Oct 1973] 45181/74 Heading F1B In a cam-shaft lubrication arrangement, for an I.C. engine, comprising a cam-shaft bearing 4 having an annular oil circulating groove 8 and a transverse groove 9 leading from the groove 8 to an end-face of the bearing, the groove 9 is so positioned that pressurized oil ejected from the groove impinges upon a predetermined portion of the running surface 6 of the adjacent cam 5 once for each revolution of the cam-shaft. The predetermined portion may be a leading flank of the cam. The groove may extend across the full width of the bearing to both end-faces thereof and thereby supply oil to two cams. The groove may be angularly directed so as to lie at an angle to the bearing endface. Two transverse grooves may be provided in angularly-staggered relationship.
Patent GB-1224189-A (GB)
Title: Brake actuator
IPC: F16D65/28
Filed: 1968-09-26
Abstract: 1,224,189. Combined emergency/service brake actuators. NORTH AMERICAN ROCKWELL CORP. 26 Sept., 1968 [26 Oct., 1967], No. 45651/68. Heading F2F. A combined emergency and service hydraulic actuator for wedge type brakes has a service piston 136 (actuated by fluid admitted via bore 146) and a spring-loaded piston 154 normally held off by fluid pressure (admitted via bore 178) and having a " nose " 162 to engage the service piston 136 in the emergency position, Fig. 3 (not shown). The service piston 136 actuates the brake-actuating-wedge 132 indirectly via a sliding plug 120. The brakes may be released by a hand pump when the emergency-parking valve is returned to its normal position; alternatively the spring may be compressed by a screwed bolt 198. Figs. 8. . . 10 (not shown) show a similar arrangement of a long thin actuator instead of a short fat one as in Figs 2 and 3 ... 7 (not shown).
Patent GB-1435614-A (GB)
Title: Emulsion breaking method
IPC: B01D17/04
Filed: 1973-10-01
Abstract: 1435614 Separating oil/water emulsions TEXACO DEVELOPMENT CORP 1 Oct 1973 [26 Oct 1972] 45717/73 Heading C5E [Also in Division B1] A method of converting a water-in-oil "emulsion" into an oil-in-water "dispersion" (both as defined below) comprises adding to the emulsion an effective amount of a demulsifier, then an amount of water sufficient to effect inversion so that the predominant continuous phase is water, and mixing sufficiently to produce an oil-in-water "dispersion". An "emulsion" is defined as a mixture which will not separate on mere standing, a "dispersion" as one which will so separate. Demulsifiers mentioned are oxyalkylated phenolic resins, polymeric amines, glycol esters, fatty acid esters, oxyalkylated polyols and polyoxyalkylene glycols. In examples, water-in-oil emulsions forming oilfield wastes are treated either with a mixture of wetting agent and brine, with stirring or firstly with wetting agent with stirring followed by partial separation into oil and residual emulsion, and subsequently with addition of brine to the residual emulsion with stirring. Both methods result in a separation of oil and water phases.